Improved roller for wringing-machines



H. W. HOLLY 8v A. P. SMITH. ROLLER PoR WRINGING MACHINES No. 39,201.APatentedJuly '7, 1863.

' UNITED STATES PATENT OFFICE.

HENRY `W. HOLLY AND ALBAF. SMITH, OF NORWICH, CONNECTICUT. AS- I sIGNoEs'ro ALBA E. SMITH.

v Specifcationforming part of. Letters Patent No. 39,201, dated July 7,1863.

To all whom it may concern.:

Beit known that we, HENRY W. HOLLY andALBA F. SMITH, of Norwich, in thecounty vof New Londonand State of Connecticut,

have' invented certain .new and useful Improvements in the Constructionof Rolls for Clothes-Wringing Machines and other Purposes; and we dohereby declare that the fol-- lowing is a full and exact descriptionthereof,

which s'prepared with a view to the issue of Letters Patent therefor.

The accompanying drawings form a part of this specification.

Figure l is a side View of the roller detached from the machine. Fig. 2is a longitudinal central section. Fig. 3 is a cross section on the lineSS in Figs. 1 and 2. Fig. 4 is a crosssection en the line T T in Figs. 1'and 2. Fig.

' 5 is an end view, and Fig. 6 is a side view, of i the exterior endplate or wheel. Fig. 7 is an inside view of the same, or a view of theface which is presented againstthe roll. Fig. 8is a View of the exteriorface of theinner or first 1.endplate. This plate is applied before and'underlies the plate. shown in Figs. 5, 6, and 7.

Fig. 9 is a side view'ot the same. Fig. 10 is a x side'view of plates orwheels introduced between'the disks of elastic material throughout theentire length of the roll.

. Similar letters of reference indicate like parts in all the figures.

Our invention is exhibited in its most complete form in the drawings.The single roll here represented is composed of cork covered .with alayer of cloth and supported by arigid core of metal, but the materialof all the parts may be varied at will.

' 'To enable others properly skilled to make y and use our invention, wewill proceed to describe its construction and operation by the aid ofthe drawings and of the letters marked thereon.

Aie a shaft which we prefer to make of` iron galvanized, and A is aspline or ridge extending along' the entire working part of the roll.We-prefer tojrmake this by soldering a wire upon the surface of A, orletting it partly into 'A and then soldering it, but we can accomplishour 'purpose by making a square shaft with correspondingholesin B B B.

B B B, &c., are castings adapted to slip endwisealong the shaft A A' butso fitted that-each is restrained from turning around but wehave foundthem very successful even when entirely plain and quite smooth, asrepresented. v

-C C C, &c., are rings or disks of cork which are introduced by slippingthem on from the end of the shaft, one being introduced Kafter eachpiece B b, so that the rings C and castings B b alternate,'as`represented. On these parts being forcibly compressed and held togetherthe cork is indented and compressed at the'points b b more than it is atpoints nearer the shaft, and is condensed more at all these pointstha-nat and near the periphery of the roll. This causes the cork to begrasped and held very firmly at and near its center, while its exterioris but slightly condensed and is ready to act with its full measureofelasticity in yielding to inequalities in the clothes Rub-ber and otherelastic or coinpressible material may be used in place of cork for therings C but Wehave found cork to be cheaper and more durable.

We cover our roll and secure the ends by means now to be described.

D D are plates, or, rather, open wheels of galvanized iron of the formrepresented; and H H are Apins which extend through holes H H in theshaft A in the manner represented These pins H H secure the wheel-s DD', and also the additional rings or plates E E', and byconi'ming thesein the relations-represented they secure the enveloping-cloth G. Toapply these parts properly, we rst compress the mass of material B C tothe proper extent by the aid of suitable machinery (not represented)acting in the line of the axis, and insert'in the holes H El shorttemporary pins.- (Not represented.) `We then compress theentireperiphery of the roll radially by inclosing it in a hollowcylinder of less diameterthan itself. We afterward force the entire rollendwise out therefrom, applying the cloth tube G properly to one endbefore the movement commences and tting it to each pirt 4 successivelyas it escapes. These operttons are best conducted after the cork orother elastic material C has-been reduced by the application of moistureor heat, or both, to

its most yielding condition, and the same is' true of the operations forsecuring the ends. These latter consist in first folding the ends of thecloth or other enveloping materia-1G over upon the ends of the roll,laying the folds properly disposed upon the outer face of the wheels DD; next applying the rings E E in such position that the points c ccoincide with the open spaces in the wheels D D; neXt pressing togetherthese rings E E with such force as to drive the points e e through thespaces in D D into the cork; and by thereby carrying the folded part ofthe cloth through the holes in D into thc cork it draws it endwisetoward each end of the roll and causes it to t very tightly. We, lastly,drive out the Ishort temporary pins referred to above and substitutelonger pins, H H', which are al` lowed t0 remain, being each embedded orpartially embedded in a corresponding crossgroove on both D and E, sothat it prevents their turning as wel-l as prevents the end movement. Onreleasing the roll from. its confinement it will now be found completelyand tightly enveloped by the cloth G and by the severa-l end pieces, andwith its elastic disks in such condition that while very tightlycompressed and iirmly held near its center it is very open-grained andelastic at its periphery.

We do not confine ourselves to the mate` rials described, and may, whenthe price will warrant it, make a better rofl by using brass instead ofgalvanized iron for A B, &c., and

'rubber-cloth or rubber alone, or any other suitable material instead ofcloth, for the envelope G. The roll represented is not provided with acrank, but is adapted to be the driven rather than the driving roll of amachine. We prefer thus to use our roll when we use but one in amachine; but our invention is suitable to be applied to both rol-ls ofall clothes-wringing machines, and to a great variety of machines usedin manufacturing establishments, &'c., power being applied through theirshafts, or not, as may be preferred.

Some of the advantages due to certainfeatures of our invention may beseparately enumerated as follows:

First. By-the use of hard rings between the disks of elastic material Cand the so lielding of these rings that they are free to slide endwise,but not to rotate around upon the shaft A, we compress and take hold ofeach disk O, not alone with the force due to its radial strain orsimplyits compression upon and adhesion to the shaft, but also by an endforce or a force acting in lines parallel to the axis, which may beincreased indefinitely without in any sensible degree affecting theelasticity of the surface of the roll; and the torsional strain or thetendency of the roll to turn around upon the shaft is transmitted fromeach disk G directly to the shaft, and is there met by the spline A oran. equivalent provision for the purpose. This feature of our in ventionprovides, in fact, a complete endwise hold of each disk-not a hold ofeach disk upon the adjacent disks, but 0f each directly upon the shaftVitself.

Second. By'the employment of the flanges b b at or near the periphery ofthe castings B, so as to make the rings practically thicker there thannearer the axis, and compelling the elastic material to assume theopposite form at the corresponding points, and to ultimately become set7 in this condition, we practically dovetail the elastic rings G totheir places between the rings B so etfectually that even if a ring, C,should entirely split or should divide into a number of independentparts, which it is not likely to do, the parts would be held not by asimple grasping', as in aviee, but by an actual lookin g of the lpartstogether in the manner of a' lewis.

Third. By the employment of our covering G, tightly iitted u pon theexterior of the disks C, of elastic material in the manner represented,lwe are able to use a poorer quality of rubber, cork, Src., orl tocompose the disks of a material less adapted in its nature to serve thepurpose intended by reason of its being more liable to crack andfracture. The disks are also compelled to act as a unit, and not to beeach compressed independently, for the covering G not only protects butalso 'unites the disks, and by reason of the transmission of the strainapplied at anyone point through the presence of the covering G to allthe points adjacent thereto we avoid the liability of one disk becomingmuch more compressed by the presence of a button or the like than itsneighbors. Without the covering G one disk might'be condensed and slipinward between its neighbors and be held there by the friction. Thecovering G, on the contrary, compels the surface of -its neighbors toaccom pany it and the elasticity of its neighbors to contribute to avoidany such disarrangem-ent of the surfaces.

Fourth. By the use of our two disks or wheels D and E, with the pointsor spurs c and pin H arranged as represented, we d raW the cloth verytightly and conveniently, and secure the ends of the entire mass of softmaterial with a single pin and with little eX- penditure either in laboror material.

Having now fully described our invention, what we claim as new therein,and desire to secure by Letters Patent, is

1. In the construction of soft and elastic rolls the employment of softpieces G C, hard pieces B B, and the splined or equivalent shaft A A',arranged to operate together in the manner and for the purpose hereinset forth.

l2. In connection with the yielding pieces or disks C C and hard piecesB, arranged as specified, the employment of the projections b b', oreither of them, arranged substantially as and for the purpose herein setforth.

3. The combination of the tightlylttrd covering G with disks of softmaterial C, and spective equivalents, for the purpose. herein suitablemeans of confining the same, subset forth.

I stantially as and for the purpose set forth. HENRY W. HOLLY.

Q 4. The spurred plates or Wheels at one or ALBA F. SMITH. both ends ofAthe roll, as represented by E e, Witnesses:

arranged as represented relatively to the'open E. H. LEARNED, v plate D7covering G, and pin H, or their re- AMOs D. ALLEN.

